| 학회 |
한국고분자학회 |
| 학술대회 |
2010년 봄 (04/08 ~ 04/09, 대전컨벤션센터) |
| 권호 |
35권 1호 |
| 발표분야 |
기능성 고분자 |
| 제목 |
Low-Bandgap PCPP Backbone Against DTBT Unit for OPVs |
| 초록 |
Poly(2,7-carbazole) derivatives have been successfully used in polymer light-emitting diodes (PLEDs) and organic field-effect transistors (OFETs). The alternating copolymers with CPP (4H-cyclopenta[def]phenanthrene) unit were incorporated with 4,7-dithienyl-2,1,3-benzothiadiazole (DTBT) unit by Suzuki conditions. The newly synthesized copolymers, PCPP-DTBT and PBEHPCPP-DTBT, contain dialkyl and bis(alkoxyphenyl) groups in the CPP. Conjugated polymers showed significant absorbance up to around 700 nm region. The HOMO-LUMO energy bandgaps of these materials show 2.00 eV for PCPP-DTBT and 1.80 eV for PBEHPCPP-DTBT. Bulk heterojunction solar cells based on blends of the polymers with [6,6]phenyl-C71-butyric acid methyl ester (PC71BM) gave power conversion efficiencies of 1.00% for PCPP-DTBT and 1.12% for PBEHPCPP-DTBT under AM 1.5, 100 mW/cm2. |
| 저자 |
김진우1, 박성흠2, 정도영1, 이광희2, 서홍석1
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| 소속 |
1부산대, 2광주과기원 |
| 키워드 |
polymer; photovoltaic; cpp
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| E-Mail |
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